Yamiochi Last Boss Reijou no Osananajimi ni Tensei Shita

I, Arcus Fort, am a reincarnated person.Therefore, I know that this world is the world of the popular otome game "Celestia Kingdom" in the real world.At first, I thought she was just an unknown mob character, but it turns out she is actually a childhood friend of the terrifying final boss lady.If the knowledge from my previous life is correct, then won't my death mean that I will fall into darkness?!I somehow managed to become the strongest without ending up with a bad ending. But something seems strange about her..."Hey, why aren't you looking at me...?"Huh, did I make a mistake on this?